Results 11 to 20 of about 272,983 (328)

Sparse Array Mutual Coupling Reduction

IEEE Open Journal of Antennas and Propagation
This paper provides a concise overview of recent developments in sparse antenna arrays, with a specific focus on techniques for reducing mutual coupling.
C. Larmour, N. Buchanan, V. Fusco, M. Ali Babar Abbasi   +3 more
doaj   +4 more sources

Research Progress and Prospect of Sparse Diversely Polarized Array Design

Leida xuebao, 2023
As compared with sparse scalar arrays and uniform diversely polarized arrays, sparse diversely polarized arrays show respectively advantages of possessing the ability of sensing the polarization state of source signals, avoiding polarization mismatch and
Yaxing YUE, Tianyu LI, Chengwei ZHOU, Xin YUAN, Zhiguo SHI   +4 more
doaj   +1 more source

Spiderweb Array: A Sparse Spin-Qubit Array

Physical Review Applied, 2022
19 pages, 16 ...
Jelmer M. Boter, Juan P. Dehollain, Jeroen P.G. van Dijk, Yuanxing Xu, Toivo Hensgens, Richard Versluis, Henricus W.L. Naus, James S. Clarke, Menno Veldhorst, Fabio Sebastiano, Lieven M.K. Vandersypen   +10 more
openaire   +5 more sources

Low Discrepancy Sparse Phased Array Antennas [PDF]

Sensors, 2021
Sparse arrays have grating lobes in the far field pattern due to the large spacing of elements residing in a rectangular or triangular grid. Random element spacing removes the grating lobes but produces large variations in element density across the aperture. In fact, some areas are so dense that the elements overlap.
Travis Torres, Nicola Anselmi, Payam Nayeri, Paolo Rocca, Randy Haupt   +4 more
openaire   +4 more sources

Optimized Design of Sparse Antenna Array for 2D Subarrays Based on GA-PSO Algorithm and Ambiguity Function. [PDF]

Micromachines (Basel)
Yang J, Lu J, Zhu T, Li C, Quan Y.
europepmc   +3 more sources

Sparse virtual array synthesis for MIMO radar imaging systems

IET Microwaves, Antennas & Propagation, 2021
Multiple‐input‐multiple‐output (MIMO) radar imaging systems require a high angular resolution to realize a high detectability level of the target directly related to the aperture size of the virtual array. Since in MIMO radars, the virtual array topology
Rabia Z. Syeda, Martijn C. vanBeurden, A. Bart Smolders   +2 more
doaj   +1 more source

Sparse linear array with low mutual coupling ratio for DOA estimation

IET Communications, 2021
In order to reduce the mutual coupling ratio of sparse linear array, a new linear array structure with two sparse uniform linear arrays interleaved nested, is proposed in this paper.
Fan Wu, Fei Cao, Xiaowei Feng, Xiaogang Ni, Chong Chen   +4 more
doaj   +1 more source

An L-Shaped Three-Level and Single Common Element Sparse Sensor Array for 2-D DOA Estimation

Sensors, 2023
The degree of freedom (DOF) is an important performance metric for evaluating the design of a sparse array structure. Designing novel sparse arrays with higher degrees of freedom, while ensuring that the array structure can be mathematically represented,
Bo Du, Weijia Cui, Bin Ba, Haiyun Xu, Wubin Gao   +4 more
doaj   +1 more source

DOA Estimation in Partially Correlated Noise Using Low-Rank/Sparse Matrix Decomposition [PDF]

, 2014
We consider the problem of direction-of-arrival (DOA) estimation in unknown partially correlated noise environments where the noise covariance matrix is sparse. A sparse noise covariance matrix is a common model for a sparse array of sensors consisted of
Babaie-Zadeh, Massoud, Jansson, Magnus, Koochakzadeh, Ali, Malek-Mohammadi, Mohammadreza, Owrang, Arash   +4 more
core   +1 more source

Optimal Design of Sparse Array for Ultrasonic Total Focusing Method by Binary Particle Swarm Optimization

IEEE Access, 2020
Ultrasonic phased array technology is used in various fields. Traditional full phased arrays place elements in every position of a uniform lattice with half-wavelength spacing between the lattice points, so the hardware cost is very high.
Han Zhang, Bichao Bai, Jianfeng Zheng, Yun Zhou   +3 more
doaj   +1 more source